Cylinder Head U20
Datsun Roadster U20 Valve & Heavy Duty Valve Spring Set
Datsun Roadster U20 valve spring set with intake and exhaust valves. 24 pieces.
Criteria for clearances intake .0015 to .002 clearance with guide
Criteria for clearances exhaust .0025 to .003 clearance with guide
Be sure to check all clearances especially